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<a href="#GdaVproviderHub.object-hierarchy" class="shortcut">Object Hierarchy</a></span>
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<h2><span class="refentrytitle"><a name="GdaVproviderHub.top_of_page"></a>GdaVproviderHub</span></h2>
<p>GdaVproviderHub — Virtual provider for connections based on other connection</p>
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<div class="refsect1">
<a name="GdaVproviderHub.stability-level"></a><h2>Stability Level</h2>
Stable, unless otherwise indicated
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<a name="GdaVproviderHub.functions"></a><h2>Functions</h2>
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<col class="functions_name">
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<a class="link" href="GdaVirtualProvider.html" title="GdaVirtualProvider"><span class="returnvalue">GdaVirtualProvider</span></a> *
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<td class="function_name">
<a class="link" href="GdaVproviderHub.html#gda-vprovider-hub-new" title="gda_vprovider_hub_new ()">gda_vprovider_hub_new</a> <span class="c_punctuation">()</span>
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<a name="GdaVproviderHub.other"></a><h2>Types and Values</h2>
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<col width="150px" class="name">
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<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="GdaVproviderHub.html#GdaVproviderHub-struct" title="struct GdaVproviderHub">GdaVproviderHub</a></td>
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<a name="GdaVproviderHub.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen"> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject">GObject</a>
<span class="lineart">╰──</span> <a class="link" href="GdaServerProvider.html" title="GdaServerProvider">GdaServerProvider</a>
<span class="lineart">╰──</span> GdaSqliteProvider
<span class="lineart">╰──</span> <a class="link" href="GdaVirtualProvider.html" title="GdaVirtualProvider">GdaVirtualProvider</a>
<span class="lineart">╰──</span> <a class="link" href="GdaVproviderDataModel.html" title="GdaVproviderDataModel">GdaVproviderDataModel</a>
<span class="lineart">╰──</span> GdaVproviderHub
</pre>
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<div class="refsect1">
<a name="GdaVproviderHub.description"></a><h2>Description</h2>
<p>This provider is used to create virtual connections which "incorporate" tables from other connections. This is typically
used when one need to compare or migrate data from one database to the other by creating two connections for each database,
and "binding" them into a third virtual connection using this provider.</p>
<p>Using <a class="link" href="GdaVirtualConnection.html#gda-virtual-connection-open" title="gda_virtual_connection_open ()"><code class="function">gda_virtual_connection_open()</code></a> with this provider as argument
will generate a <a class="link" href="GdaVconnectionHub.html" title="GdaVconnectionHub"><span class="type">GdaVconnectionHub</span></a> connection object, from which connections can be added.</p>
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<div class="refsect1">
<a name="GdaVproviderHub.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="gda-vprovider-hub-new"></a><h3>gda_vprovider_hub_new ()</h3>
<pre class="programlisting"><a class="link" href="GdaVirtualProvider.html" title="GdaVirtualProvider"><span class="returnvalue">GdaVirtualProvider</span></a> *
gda_vprovider_hub_new (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Creates a new GdaVirtualProvider object which allows one to
add and remove GdaDataModel objects as tables within a connection</p>
<div class="refsect3">
<a name="id-1.3.7.5.8.2.5"></a><h4>Returns</h4>
<p> a new <a class="link" href="GdaVirtualProvider.html" title="GdaVirtualProvider"><span class="type">GdaVirtualProvider</span></a> object.</p>
<p></p>
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<div class="refsect1">
<a name="GdaVproviderHub.other_details"></a><h2>Types and Values</h2>
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<a name="GdaVproviderHub-struct"></a><h3>struct GdaVproviderHub</h3>
<pre class="programlisting">struct GdaVproviderHub;</pre>
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<div class="refsect1">
<a name="GdaVproviderHub.see-also"></a><h2>See Also</h2>
<p>See also the <a class="link" href="virtual_connection.html#VirtualIntro" title="Introduction to virtual connections">introduction to virtual connections</a></p>
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